lumilens - Senior Silicon Photonics Engineer

Singapore3mo ago

In Office Senior APAC Semiconductors Senior Software Engineer CPO Circom Foundry

Requirements

• PhD in Electrical Engineering, Physics, or related field (silicon photonics or closely related area) • 0–5 years of relevant experience (including fresh PhD graduates) • Experience in design and simulation of silicon photonic devices or PICs • Strong understanding of guided-wave optics and device physics • Familiarity with tools such as Lumerical, COMSOL, or equivalent • Exposure to PIC layout and tapeout flows (PDK, DRC/LVS) • System Awareness • Basic understanding of optical communication systems and/or RF effects • Experience with high-speed devices (>100 GHz bandwidth or equivalent) • Exposure to CPO/NPO or optical transceiver architectures • Familiarity with SiPh + III-V integration • Experience with inverse design / adjoint methods (e.g., Meep)

Responsibilities

• Design and optimize silicon photonic devices and circuits, including: • High-speed modulators (MZI, ring, advanced structures) • Photodetectors and receiver building blocks • Passive components (couplers, filters, routing) • Perform multi-domain simulations (EM, circuit, thermal) to meet targets in: • Bandwidth (200G/lane+) • Insertion loss, extinction ratio, efficiency • Implement PIC layouts (GDS) using foundry PDKs and support tapeouts • Co-design with electronics and packaging teams for CPO/NPO systems: • RF effects, parasitics, signal integrity, and thermal constraints • Support silicon bring-up and characterization: • Correlate measurement vs simulation • Drive design iterations and improvements • Contribute to design libraries, modeling, and methodology development

Benefits

• Work on real products at 200G/lane+, not just research prototypes • Direct impact on AI infrastructure and hyperscale systems • Fast iteration cycles from design → silicon → system • High ownership early in your career • Comprehensive benefits package including health insurance • Collaborative environment with world-class engineering and R&D teams